Wavefront and amplitude profile for astigmatic beams in semiconductor lasers: analytical and graphical treatment

The problem of the propagation of astigmatic beams, in particular those produced by semiconductor lasers, is treated in analytic and graphical forms. The authors use hyperbolic and ellipsoidal curves to describe the propagation of the Gaussian width and the wavefront surface in both perpendicular planes defined by the astigmatic beam. To find all the parameters they need only the divergence of the beam.